Loom for weaving fiber reed



Nov. 24, 1931.

G. E. NoRDTRoM 1,832,943

LOOM FOR WEAVING FIBER REED Original Filed April 17, 1928 2 sheewsheet l INVENTORI ark/55150590227 BY V M'WTTORNEYIH Nov. 24, 1931.

: G. E. NORDSTROM LOOM FOR WEAVING FIBER REED o riginal Filed April 17, 1928 2 Sheets-Sheet 2 INVENTOR. .fi

Mafia),

BY .M Yz ORNEYS.

Patented Nov. 24, 1931 UNITED STATES. PATENT OFFICE I i etrs'rsr" .E. newsman, 51 GAR ER, mssaonusnrrs, Ass eNoa TO AMERICAN FIBRE-CORPORATION; or GARDNERyMASSACHUSETTS, A CORPORATION or'MAssA- room mm WEAVINGFIIBER RE D Original application filed Apri 1.17,'1928,-Seria1 Noi 300,342. "Divided and this application filed Noir'ember' 15,-1929. Serial 'No." 407528.

This invention relates to certain improvements in a loomj-for weaving fiber reed or other similar products and is a division of my 1 prior application, serial'No. 300,342,

filed by; me April; 17 1928. In sucha loom, no-shuttle is used but the fiber ;is pushed or shot through the'shed; of the fabric from one edge thereof.

It is one'object ofmy invention to provide 1 improved mechanism for thus intermittently feeding or shooting the fiber into the fabric.

1 have also provided abraking device for. reventing overfeed of the fiber.

M? invention further relates to arrangem ments and combinations of. parts which will be hereinafter described and more particu ai'row 5 in Fig. 1; and

Fig. 6 isa. rear elevation of certain driving" connections; looking in the direction of thearrow 6 in Fig. 5. H a r In' Fig. 1 I'have shown a'portion of aloom frame 20 2 having harness mechanism- 21 mounted thereon and having a reed or beater 22inounted'onbrackets 23 and slidable on the loom side 20. The warp threads are indicated-atWand the woven fabric at G.

The reed 22 is formed of upper and lower members which, when closed, provide apass sage extending fromsi'de to side ofthe loom.

pushing I or shooting the fiber through the passagethiis formed. p i

The fiberis fedfrom a suitable roll or creel to afpafssage;321(Fig. -3) in a fixedguide- 50" membr"33; Tlie'guide' inember presents the 'F igxl is a plan view of parts of a' loom Fig. 3 is j an enlarged sectional elevation,

The fiber reed is inserted the fabric by reed F: "between'feed' discs 35 and 36. "The edges of the feed discs are grooved, asindicated at 37in Fig. 4, and th'LlSPIGVBIlt lateral displacement of the fiber.

The feed discs 35and 36 are fixed to gears 38-andf39by which they'are positively rotated. The gear 38 is mounted on a shaft 40' (Fig. 5) rotatable in fixed bearings and co'nnectedbybevel gears 41 and 42' with an intermediate shaft 43 having a' bevel' pinion' 44 (Fig. 6) engaging a bevel" gear 45 on a main driving'shaft 46 which is continuously rotated from any convenient source of power. The teethof the gears 38 and 39 are made of 'unusual'length, so that the upper gear 39 i may be raised and lowered more or less without disengaging the gears. 1

The upper" gear 39 and its disc 36 are mountedon astud 50 (Fig. 1) secured in a rocking lever 5 1, pivoted on a'fixedstu d 52 and having alrodor link 54 connected thereto bya stud'55 mounted in an arm extending rearwardly from the hub of the lever'51.

"Therodprlink 54 (Fig. 5) isprovided with a collar '56 engaging a bracket 'or proj ect-ion 57 and limiting downward movement thereof.

A second collar 58 on the rod 54 is'engaged bytheforked'en'd of a small'cam lever 60, pivoted at'tl and having a roll 62at' its oppositeend. The roll 62" engages atw'o-step r cam 63,1'p1voted at-64, and having an'a'r'm 65 with aroll66engaging an actuating cam on the-mainshaft 46. The cam is made intwo pieces-67 and'68, as indicated in Figs. 5' and 6, the piece68 being slotted and being secured to' the member 67 'bybolts 69.

Thetwocam portions 67 and 68 may be adjusted 'angularly relative to each other,'to

varyzthe feed of ,tliefiber in accordancewith' the-width of the fabric being woven.

Aj spring 70 (Fig. 5) engages athird collar71-on the'rod 54 andforces'the rod 'yiel'dinglyupward-as far as is permitted by the camlever 60. Aspring 72 (Fig. 5) also acts to apply yielding pressure to the camlever 65.

I The parts are shown in inoperative position in Fig. 5, with the feed discs-35'and36' separated, VVhen-the roll 66 drops intothe'low space between the members 67 and 68, the cam 63 is rocked to the right and the roll 62 drops, permitting the rod 54 to be moved yieldingly upward by the spring 70. This action pushes the upper feed disc 36 downward against the fiber which is resting on the groove on the lower feed wheel 35.

A. brake rod 7% (Fig. 2) is slidable vertically in the outer end of the feed lever 51 and is pressed yieldingly upward by a spring 75. The lower end 7 6 of the rod 74 is bent forward, as indicated in Fig. 5, and extends under the fiber F. When the lever 51 is rocked to separate the feed discs and stop the feed, the offset end 7 6 presses upward on the under side of the fiber and acts as a brake to prevent overrunning of the fiber.

As the fiber leaves the feed wheels, it enters a guiding tube 78 (Fig. 2) mounted in a fixed bracket 7 9 and is severed by a knife 130.

. Briefly summarized, my improved feeding mechanism comprises upper and lower feed discs 35 and 36, continuously rotated and alternately moved toward and away from each other at predetermined times by the cam mechanism described.

-When the feed wheels are moved toward each other, they engage the fiber F and force or shoot the fiber through the shed opening, the amount of feed corresponding to the width of the fabric and being determined by the setting of the cam portions 67 and 68 (Fig. 5). Overrunning of the fiber is effectively prevented by the braking device 76.

A simple and satisfactoryfeeding mechanism is thus provided, by which the feed may be accurately accomplished and conveniently adjusted.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is 1. In a loom for weaving relatively stiff filling, in combination, a pair of feed members, means to give both of said members a continuous feeding movement, means to move one of said members toward the other, and cam actuated means for controlling and timing the movement of said members toward each other to engage and feed the filling.

2. In a loom for weaving relatively stiff filling, in combination, a pair of feed members, means to give both of said members a continuous feeding movement, means to move one of said members toward the other, and cam actuated means for controlling and timing the movement of said members toward each other to engage and feed the filling and to maintain feeding engagement for a predetermined period.

8. In a loom for weaving relatively stiff filling, in combination, a pair offeed members, means to rotate both of said members continuously, means to move one of said members toward the other and cam actuated means for controlling and timing the move ment of said members toward each other to engage and feed the filling and to maintain feeding engagement to feed a predetermined length of filling.

L'In a loom for weaving relatively stiff filling, in combination, a pair of rotatable feed members, intermeshing gears on said feed members having gear teeth of such length that they maintain driving engagement when said feed members are separated and inoperative, means to ,rotate'said gears and members continuously, and means to move said members toward each other to engage and feed the filling, at a predetermined point in the cycle of operation.

5. In a loom for weaving relatively stiif filling, in combination, a pair of feed members mounted for separation and approach, means to rotate both of said members continuously, and automatically controlled means to effect an approach of said members to engage and feed the filling and to separate said members after a predetermined feeding action.

6. In a loom for weaving relatively stiff filling, in combination, a pairof feed members, means to give said members a continuous feeding movement, automatically controlled means to move said members toward each other to engage and feed the filling, and means adjacent said feed members effective to engage and retard said filling, said latter means becoming operative only as said feed members are separated.

7. In a loom for weaving relatively stiff filling, in combination, a pair of feed members, means to give said members a continuous feeding movement, automatically controlled means to move said members toward each other to engage and feed the filling, and means to apply yielding braking pressure to said filling as said members are separated.

8. In a loom for weaving relatively stiff filling, in combination a pair of feed members, means to rotate both of said members continuously, and means to move said members toward each otherto engage and feed the filling, and automatic means to separate said members after a predetermined feeding action, said last means comprising an' adjustable cam and connections from said cam to one of said members.

9. In a loom for weaving a relatively stiff filling, in combination a pair of feed members, means to give said members a continuous feeding movement, means to move said members toward each other to engage and feed the filling, an adjustable cam effective to move one of said members to inoperative position, connections from said cam to said member, and means adjacent said fee-d members effective to engage and retard said filling, said latter means becoming operative only as said feed members are rendered inoperative.

10. In a loom for weaving relatively stiff filling in oombination, a pair of feed members, means-to give said members a continuous feeding movement, means to move said members toward each other to engage and feed the filling, and means to separate said members, said latter means comprising an adjustable cam, and connections from said cam to one of said members, effective to limit feeding engagement to a predetermined period.

In testimony whereof I have hereunto affixed my signature.

GUSTAF E. NORDSTROM. 

